﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using L = Science.Mathematics.LinearAlgebra;

namespace Strang3Ed.Chapter05.Section2
{
    public class Example07
    {
        public Example07()
        {
        }
        private string result;
        public string Result
        {
            get { return result; }
        }
        public void Compute()
        {
            double[,] x = {{1.0,-1.0,0.0,0.0,0.0},
                           {-1.0,2.0,-1.0,0.0,0.0},
                           {0.0,-1.0,2.0,-1.0,0.0},
                           {0.0,0.0,-1.0,2.0,-1.0},
                           {0.0,0.0,0.0,-1.0,2.0}};

            L.Matrix A = new L.Matrix(x);
            result += A.Determinant.ToString() + "       ";

            L.Cofactor C00 = new L.Cofactor(A, 0, 0);
            L.Cofactor C01 = new L.Cofactor(A, 0, 1);

            double d = 1.0 * C00.Determinant + (-1.0) * C01.Determinant;
            result += d.ToString();
        }
    }
}
/*
1       1
*/
